Londonderry, VT Live Doppler Radar

Live radar for Londonderry, Windham County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

What weather hits Londonderry?

Since 1996, the National Weather Service has logged heavy snow or a winter storm on 150 days in the Western Windham forecast zone and Windham County — the most common reported hazard around Londonderry, mostly in February and March. Next come damaging thunderstorm winds (74 days) and extreme cold & wind chill (52 days).

HazardDays reportedMost recentWorst on record
Heavy snow & winter storms150Jan 2026Mar 31, 1997 · $750,000 damage
Damaging thunderstorm winds74Jun 2026Jul 6, 1999 · $150,000 damage
Extreme cold & wind chill52Feb 2026—
Flash flooding31Jun 2025Aug 28, 2011 · 1 death
High winds25Feb 2019Sep 16, 1999 · $175,000 damage
Flooding21Dec 2023Jul 10, 2023 · $500,000 damage
Excessive heat9Jun 2025—
Ice storms & sleet5Mar 2025—

Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Western Windham forecast zone and Windham County; damage is as reported, not adjusted for inflation.

How much snow does Londonderry get?

A normal year brings about 91 inches of snow to Londonderry, based on NOAA's 1991–2020 climate normals for the Ludlow weather station 12.3 miles away. The snowiest month is usually January (21.0 in).

OctNovDecJanFebMarAprMay
1.07.617.121.017.520.75.60.1

Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.

Which radars cover Londonderry?

The closest NEXRAD Doppler radar is KENX (Albany, NY), about 78 miles southwest. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.

RadarDistanceLowest beam over LondonderryView
KENX
Albany, NY
78 mi southwest6,600 ftFair — the beam can pass over shallow snow and low-level rotation
KCXX
Burlington, VT
90 mi north-northwest8,200 ftFair — the beam can pass over shallow snow and low-level rotation
KBOX
Boston, MA
122 mi southeast13,100 ftLimited — the beam overshoots the lowest part of storms

Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.

Tornado & hail history near Londonderry

Since 1950, NOAA has recorded 15 tornadoes within 25 miles of Londonderry, 7 of them EF2/F2 or stronger. Most came in July and August. The strongest was an F3 on August 20, 1968, which touched down about 9 miles south of town. The most recent was an EF1 on May 16, 2022, which passed about 22 miles east-northeast of town.

Hail: 85 reports of 1-inch or larger hail within 25 miles since 1955, 3 of them 2 inches or more; the largest was 3.25-inch hail on June 1, 2011.

Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.

On TALON you get Londonderry's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.

Londonderry radar FAQ

Where is the nearest weather radar to Londonderry, VT?

KENX (Albany, NY), about 78 miles southwest. KCXX (Burlington, VT) is 90 miles away and also covers the area.

Does radar show snow in Londonderry?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Londonderry the lowest scan from KENX is about 6,600 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.

Is TALON's radar for Londonderry free?

Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.

Should I rely on radar for my safety?

No app replaces official warnings. When the National Weather Service issues a warning for Londonderry, follow it right away — see watch vs. warning.

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